Multi-step reaction with 5 steps
1: 1.) isoprenyl acetate, p-TsOH*H2O, 2.) DDQ / 1.) reflux, 120 h, 2.) 90 deg C, 0.5 h
2: 81 percent / potassium carbonate / dimethylformamide / 1.33 h / 60 °C
3: 1.) O3, 2.) dimethyl sulfide / 1.) CH2Cl2, -70 deg C, 50 dm3 h-1, 6 min, 2.) r.t., 1 h
4: 81.9 percent / potassium carbonate / dimethylformamide / 2.5 h / 40 °C
5: 85.2 percent / 30percent hydrogen peroxide, sodium phosphate monobasic dihydrate, 80percent sodium chlorite / acetonitrile; H2O / 4 h / 10 °C
With
sodium chlorite; sodium dihydrogenphosphate; dimethylsulfide; 1-acetoxy-2-methyl-buta-1,3-diene; dihydrogen peroxide; potassium carbonate; toluene-4-sulfonic acid; ozone; 2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
water; N,N-dimethyl-formamide; acetonitrile;
DOI:10.1039/P19930001019